<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card>
      <!-- 添加角色区域 -->
      <el-row>
        <el-col>
          <el-button type="primary" @click="dialogVisible = true"
            >添加角色</el-button
          >
        </el-col>
      </el-row>
      <!-- 角色列表区域 -->
      <el-table :data="rolelist" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand">
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom', index1 === 0 ? 'bdtop' : '', 'vcenter']"
              v-for="(item1, index1) in scope.row.children"
              :key="item1.id"
            >
              <!-- 渲染一级 -->
              <el-col :span="5">
                <el-tag closable @close="removeRightById(scope.row, item1.id)">
                  {{ item1.authName }}</el-tag
                >
                <i class="el-icon-caret-right"></i>
              </el-col>
              <!-- 渲染二级和三级 -->
              <el-col :span="19">
                <!-- 二级 -->
                <el-row
                  :class="[index2 === 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, index2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span="6"
                    ><el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row, item2.id)"
                      >{{ item2.authName }}</el-tag
                    >
                    <i class="el-icon-caret-right"></i
                  ></el-col>
                  <!-- 三级 -->
                  <el-col :span="18"
                    ><el-tag
                      type="warning"
                      v-for="item3 in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row, item3.id)"
                      >{{ item3.authName }}</el-tag
                    ></el-col
                  >
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <!-- 索引列 -->
        <el-table-column type="index" label="#"> </el-table-column>
        <el-table-column prop="roleName" label="角色名称"> </el-table-column>
        <el-table-column prop="roleDesc" label="角色描述"> </el-table-column>
        <el-table-column label="操作" width="300px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
              >编辑</el-button
            >
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeUserById(scope.row.id)"
              >删除</el-button
            >

            <el-button
              type="warning"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRightDialog(scope.row)"
              >分配权限</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 分配权限 -->
    <el-dialog
      title="分配权限"
      :visible.sync="setRightDialogVisible"
      width="50%"
      @close="setRightDialogClosed"
    >
      <el-tree
        ref="treeRef"
        :data="rightlist"
        :props="treeProps"
        show-checkbox
        node-key="id"
        default-expand-all
        :default-checked-keys="defKeys"
      ></el-tree>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="allotRights">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 添加用户 -->
    <el-dialog
      title="添加用户"
      :visible.sync="dialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addRolesRef"
        label-width="100px"
      >
        <el-form-item label="角色名称:" prop="roleName">
          <el-input v-model="addForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述:" prop="roleDesc">
          <el-input v-model="addForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 编辑用户信息 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        ref="editRolesRef"
        label-width="100px"
        :rules="addFormRules"
      >
        <el-form-item label="角色名称" prop="roleName">
          <el-input v-model="editForm.roleName"></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name: "Roles",
  data() {
    return {
      //所有角色列表数据
      rolelist: [],
      // 控制对话框的显示和隐藏
      dialogVisible: false,
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息
      editForm: {},
      // 分配角色对话框的显示与隐藏
      setRightDialogVisible: false,
      // 树形控件的属性绑定对象
      treeProps: {
        label: "authName",
        children: "children",
      },
      // 默认选中的节点Id值
      defKeys: [105, 116],
      // 分配角色数据
      rightlist: [],
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //验证表单的验证规则对象
      addFormRules: {
        roleName: [
          {
            required: true,
            message: "请输入角色名",
            trigger: "blur",
          },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在3~10个字符之间",
            trigger: "blur",
          },
        ],
      },
      roleId: "",
    };
  },
  created() {
    this.getRolesList();
  },
  methods: {
    async getRolesList() {
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色列表数据失败");
      }
      this.rolelist = res.data;
      // console.log(this.rolelist);
    },
    //监听添加用户对话框
    addDialogClosed() {
      this.$refs.addRolesRef.resetFields();
    },
    //点击确定按钮添加新用户
    addUser() {
      this.$refs.addRolesRef.validate(async (valid) => {
        if (!valid) return;
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("roles", this.addForm);
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败！");
        }
        this.$message.success("添加用户成功！");
        this.dialogVisible = false;
        this.getRolesList();
      });
    },
    //点击修改用户信息
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("roles/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败！");
      }
      this.editForm = res.data;
      // console.log(this.editForm);
      this.editDialogVisible = true;
    },
    //点击取消重置
    editDialogClosed() {
      this.$refs.editRolesRef.resetFields();
    },
    // 修改用户信息并提交
    editUserInfo() {
      this.$refs.editRolesRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        //发起修改用户的数据请求
        const { data: res } = await this.$http.put(
          "roles/" + this.editForm.roleId,
          {
            roleName: this.editForm.roleName,
            roleDesc: this.editForm.roleDesc,
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新角色信息失败");
        }
        this.editDialogVisible = false;
        this.getRolesList();
        this.$message.success("更新角色信息成功");
      });
    },
    async removeUserById(id) {
      // console.log(id);
      const confirmResult = await this.$confirm(
        "此操作将永久删除该角色, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("roles/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除角色失败");
      }
      this.$message.success("删除角色成功");
      this.getRolesList();
      // console.log(confirmResult);
    },
    //展开列点击X关闭
    async removeRightById(role, rightId) {
      //弹框提示用户是否确认删除
      const confirmResult = await this.$confirm(
        "此操作将永久删除该权限, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete(
        `roles/${role.id}/rights/${rightId}`
      );
      if (res.meta.status !== 200) {
        return this.$message.error("删除权限失败！");
      }
      this.$message.success("删除权限成功！");
      // this.getRolesList();
      role.children = res.data;
    },

    // 点击分配权限
    async showSetRightDialog(role) {
      this.roleId = role.id;
      // 获取所有数据
      const { data: res } = await this.$http.get("rights/tree");
      if (res.meta.status !== 200) {
        return this.$message.error("获取权限信息失败！");
      }
      this.rightlist = res.data;
      console.log(this.rightlist);
      //递归获取三级权限的id
      this.getLeafKeys(role, this.defKeys);
      this.setRightDialogVisible = true;
    },

    //通过递归获取三级权限的id
    getLeafKeys(node, arr) {
      if (!node.children) {
        return arr.push(node.id);
      }
      node.children.forEach((item) => this.getLeafKeys(item, arr));
    },
    // 监听分配权限对话框的关闭事件
    setRightDialogClosed() {
      this.defKeys = [];
    },
    async allotRights() {
      const keys = [
        ...this.$refs.treeRef.getCheckedKeys(),
        ...this.$refs.treeRef.getHalfCheckedKeys(),
      ];
      // console.log(keys);
      const idStr = keys.join(",");
      // console.log(idStr);
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      );
      if (res.meta.status !== 200) {
        return this.$message.error("分配权限失败！");
      }
      this.$message.success("分配权限成功！");
      this.getRolesList();
      this.setRightDialogVisible = false;
    },
  },
};
</script>
<style scoped>
/* .el-form-item__label {
  width: 100px !important;
}

.el-input {
  margin-left: 20px;
  width: 80%;
} */
.el-tag {
  margin: 7px;
}
.bdtop {
  border-top: 1px solid #eee;
}
.bdbottom {
  border-bottom: 1px solid #eee;
}
.vcenter {
  display: flex;
  align-items: center;
}
.el-input__inner {
  width: 100px !important;
}
</style>